shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

phy: rockchip-inno-usb2: add wake_lock function

Browse Source 
Prevent the system from entering suspend when usb cable is connecetd.

Change-Id: I50c4a09d9142ebeb2d4e2a0ab2df59f98ef99737
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
This commit is contained in:
Frank Wang
2019-03-07 14:40:40 +08:00
committed by Tao Huang
parent e170046b8c
commit bc4e593a37
1 changed files with 23 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
View File

@@ -27,6 +27,7 @@
#include <linux/mfd/syscon.h>
#include <linux/usb/of.h>
#include <linux/usb/otg.h>
#include <linux/wakelock.h>
#define BIT_WRITEABLE_SHIFT 16
#define SCHEDULE_DELAY (60 * HZ)
@@ -248,6 +249,7 @@ struct rockchip_usb2phy_port {
struct regulator *vbus;
const struct rockchip_usb2phy_port_cfg *port_cfg;
struct notifier_block event_nb;
struct wake_lock wakelock;
enum usb_otg_state state;
enum usb_dr_mode mode;
};
@@ -1016,6 +1018,7 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
switch (rphy->chg_type) {
case POWER_SUPPLY_TYPE_USB:
dev_dbg(&rport->phy->dev, "sdp cable is connected\n");
wake_lock(&rport->wakelock);
cable = EXTCON_CHG_USB_SDP;
mutex_unlock(&rport->mutex);
rockchip_usb2phy_power_on(rport->phy);
@@ -1031,6 +1034,7 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
break;
case POWER_SUPPLY_TYPE_USB_CDP:
dev_dbg(&rport->phy->dev, "cdp cable is connected\n");
wake_lock(&rport->wakelock);
cable = EXTCON_CHG_USB_CDP;
mutex_unlock(&rport->mutex);
rockchip_usb2phy_power_on(rport->phy);
@@ -1066,6 +1070,7 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
rport->perip_connected = false;
sch_work = false;
wake_unlock(&rport->wakelock);
} else if (!rport->vbus_attached) {
dev_dbg(&rport->phy->dev, "usb disconnect\n");
rport->state = OTG_STATE_B_IDLE;
@@ -1073,6 +1078,7 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
rphy->chg_state = USB_CHG_STATE_UNDEFINED;
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
delay = OTG_SCHEDULE_DELAY;
wake_unlock(&rport->wakelock);
}
sch_work = true;
break;
@@ -1615,6 +1621,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
if (rport->vbus_always_on)
goto out;
wake_lock_init(&rport->wakelock, WAKE_LOCK_SUSPEND, "rockchip_otg");
INIT_DELAYED_WORK(&rport->bypass_uart_work,
rockchip_usb_bypass_uart_work);
INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work);
@@ -1636,13 +1643,14 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
if (ret) {
dev_err(rphy->dev,
"failed to request otg-mux irq handle\n");
return ret;
goto err;
}
} else {
rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid");
if (rport->bvalid_irq < 0) {
dev_err(rphy->dev, "no vbus valid irq provided\n");
return rport->bvalid_irq;
ret = -EINVAL;
goto err;
}
ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq,
@@ -1654,13 +1662,14 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
if (ret) {
dev_err(rphy->dev,
"failed to request otg-bvalid irq handle\n");
return ret;
goto err;
}
rport->ls_irq = of_irq_get_byname(child_np, "linestate");
if (rport->ls_irq < 0) {
dev_err(rphy->dev, "no linestate irq provided\n");
return rport->ls_irq;
ret = -EINVAL;
goto err;
}
ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL,
@@ -1669,7 +1678,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
"rockchip_usb2phy", rport);
if (ret) {
dev_err(rphy->dev, "failed to request linestate irq handle\n");
return ret;
goto err;
}
}
@@ -1677,7 +1686,8 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
rport->id_irq = of_irq_get_byname(child_np, "otg-id");
if (rport->id_irq < 0) {
dev_err(rphy->dev, "no otg id irq provided\n");
return rport->id_irq;
ret = -EINVAL;
goto err;
}
ret = devm_request_threaded_irq(rphy->dev, rport->id_irq, NULL,
@@ -1686,7 +1696,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
"rockchip_usb2phy_id", rport);
if (ret) {
dev_err(rphy->dev, "failed to request otg-id irq handle\n");
return ret;
goto err;
}
iddig = property_enabled(rphy->grf, &rport->port_cfg->utmi_iddig);
@@ -1697,7 +1707,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
/* Enable VBUS supply */
ret = rockchip_set_vbus_power(rport, true);
if (ret)
return ret;
goto err;
}
}
@@ -1708,7 +1718,7 @@ static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
EXTCON_USB_HOST, &rport->event_nb);
if (ret) {
dev_err(rphy->dev, "register USB HOST notifier failed\n");
return ret;
goto err;
}
}
@@ -1724,6 +1734,10 @@ out:
rport->suspended = true;
return 0;
err:
wake_lock_destroy(&rport->wakelock);
return ret;
}
static int rockchip_usb2phy_probe(struct platform_device *pdev)